Solid tires are a type of tire made from a solid rubber or polymer material, eliminating the need for air. This design makes them puncture-proof and highly durable, making them ideal for heavy-duty applications like forklifts and construction equipment. They provide consistent performance on various surfaces without the risk of flat tires. These tires are often used in environments where traditional pneumatic tires may fail, such as in warehouses or on rough terrain. While they may offer a stiffer ride compared to air-filled tires, their longevity and low maintenance requirements make them a popular choice for many industrial applications.